Fascilitated diffusion is an example of passive transport because a protein carrier helps pass a substance through the cell membrane. No energy is required to do this, which is why it is passive. (Active transport involves the expenditure of energy).
Definitely D. Because we just learned about this in science
Answer:
fish and tetrapods are both vertebrates that have a backbone with a spinal cord. fish lived before tetrapods because their fossils are in rocks over 500 million years old.
Explanation:
fish and tetrapods are both vertebrates that have a backbone with a spinal cord
Male peacocks, known for their brightly colored jewel-toned feathers, show off their colorful train or tail to attract a female. When it comes to selecting a mate, peahens (female peacocks) decide what is attractive
